Assigjtoe of one



(No Model.)

J. H. GORSBIB.

SASH BALANCE.

No. 383,280. Patented May 22, 1888.

@lv/dwp@ww.v Rs anne/wko@ M l A I I .331% V CHJJLo/z/nmy Nrrn raras JAMES IIANOE OORSBIE, OF HARTSELLS, ALABAMA, ASSIGNOR OF ONE- HALF TO MILTON J. SPEAKS, OF SAME PLACE.

SASH-ALANCE.

SPECIFICATION forming part of Letters Patent No. 383,280, dated May 22, 1888.

Application tiled July 1G, i887. Serial No. 244,522.

To LZZ whom it may concern:

B e 1t known that l, JAMES Harten Coussin, a e1t1zen of the United States, residing at Hartsells, in the county of Morgan and State of Alabama, have invented a new and useful Improvement in Sash-Balances, of which the following is a specification.

My invention relates to an improvement in saslrbalances, and itconsists in a certain novel ro construction and arrangement of parts for service, clearly set forth hereinafter and specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is perspective view of a window provided with x5 myimprovedsaslrbalance. Fig. 2is a section through the frame on the line x x of Fig. 1, showing the edges of the sashes in elevation. Fig. 3 is a section on line y gef Fig. l. Fig. 4t is a detail view of the rear of the fastener.

Referring to the drawings, in which similar letters denote corresponding parts in all the figures, A is the lower and B the upper `sash in the frame C, said frame having the usual inside molding, D, outside bead, d, and partingbead E between the sashes.

F is a pulley secured to the edge of the upper sash, B, near the upper part. Gis a pul ley set in the partingbead E. II is a pulley on the edge of the lower sash, A, near the upper end. I is a pulley secured on the inside of the frame, and K is a pulley secured on the face of the meeting-'rail of the lower sash.

L represents the fastener secured to the meeting-rail ot' the lower sash, A, and consisting of a block, M, having the wedge-shaped recessesN N therein, said recessesbeing joined at their narrowest parts, and having the openings a a' in their wide ends.

O O are shallow recesses made in the lower Vare portion of the block below the recesses N N',

for a purpose to be explained.

P are openings in the block for the reception ot' screws to fasten saidblock to the sash. Q Q are wedges to operate in the recesses N N', and having the serrated upper edges, said edges being straight to correspond with the straight upper wall of the recesses N N.

R It' are pins or handles secured in the lower side of the wedges Q Q', and extending 5o through the shallow recesses O O', and pro jecting beyond the lower edge of the block M.

(No InodeLl S represents a cord which is secured to the upl per side ofthe frame ofthe window at the point s, and, passing under the pulley F on the up per sash, over the pulley G, under the pulley H on the lower sash, over the pulley I on the inside of the frame, and under the pulley K on the frontof the lower sash,passes alon gthe1neeting or upper rail of the sash, and through the block-fastener L over the serrated wedges Q Q. There is a duplicate set of pulleys on the opposite side of the window and placed in the same relative positions as the pulleys above mentioned. Passing around said duplicate set of pulleys in the same manner as the cord S passes around the pulleys F G I-I I K is a cord, S', which also passes through the fastener L in the opposite direction to that taken by the said cord S. The cords S S', after leaving the fastener L, hang down, as shown in Fig. l, and are provided with the tassels T T', which serve as handles.

The operation of my invention is as follows: When raised, the tendency' of the upper sash is downward, and in order to descend the said upper sash must pull upon the cords S S'. This pull tends to draw the cords through the block M, but this is opposed by the wedges Q Q', whose serrated upper edges engage the said cords and the action is to draw the wedges toward the center and smaller ends of the recesses N N', thereby causing the said cords to be conipressed tightly between the upper sides of the wedges and the top wall of the recesses N N'. This action on the part of the wedges prevents the descent of the upper sash, as will be understood. If it be desired to raise the lower sash and lower the upper sash at the saine time, it is only necessary to lift the lower sash, as this will slacken the ,cord between the pulley K and the pulley I and allow the weight of the upper sash to cause the descent thereof. Vihen both sashes are in their closed fpositions, to raise the lower sash pull the free ends of the cords S S', and at the same time draw the handleslwhich are attached to the wedges apart, thus freeing the cords from engagement. The cords now being free may be drawn through the fastener and around the pulley K. It will be readily seen that the said cords will remain stationary at the pulleys I, and the action will be to raise the said IOO ' handles RR.

lower sash by passing under the pulleys K. When the lower sash has reached the desired elevation and the cords are allowed to pass back through the block a short distance, the wedges will again clamp said cords and hold the sash in the new position.

To lower the upper sash, release the cords by drawing the wedges away from contact therewith and allow the weight of the upper sash to draw thecords through the fastener L. IVhen the said sash is lowered to the desired point, release the wedges and the cords passing through the block will again cause the wedges to clamp the cord as before.

It will be understood that to release the oord from the wedges it is only necessary to draw said wedges apart by means of the pins or This removes the serrated u pper edges of the wedges Q Q' from Contact with the cords S S. It will now be understood that the cords cannot be drawn through the fastener in either direction without drawing the wedges apart, and thus releasing the cords from engagement-that is, when the tension is upon the main part of the cord (above the fastener) the wedge at the opposite end of the fastener engages therewith and prevents motion, and when the lower or free end of the cord is drawn upon the other wedge engages the cord.

The advantages gained by the construction and arrangement herein described are that either sash may be moved independently of the other, or bot-h sashes maybe moved in contrary directions at the same time, and as the upper and lower sashes eounterbalance each other they will come to rest as soon as the operator ceases movingthem, and allows the fastener to act on the cords.

saazso Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

l. In a sash-balance, the combination, with the sashes having suitable pulleys thereon, of the fastener L, secured to one of the sashes and comprising the block M, having the wedgeshaped recesses N N therein, the openings a n' in the ends of the block and communicating with the said recesses, and the wedges Q Q', arranged in the recesses N N', and having serrated upper sides, and the cords S S', operating around the said pulleys and passing through the openings a n', and recesses N N' in opposite directions over the said wedges, substantially as specified.

2. In a sash-balance, the combination, with the sashes having suitable pulleys arranged thereon,of the fastener L,comprisi ng the block M, having the wedge-shaped recesses NN', the end openings, a a', and the shallow recesses O O',communicating with the recesses N N', and

the serrated wedges Q Q',operatng in the recesses N N', and having pins or handles R R', operating in the recesses O O', and the cords S S', passing around the said pulleys and eX- tending through the openings n a' in opposite directions, the said cords being adapted to be clamped within the block M by the wedges Q', substantially as and for the purpose specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

JAMES IIANCE CORSBIE.

Witnesses:

JorrNsoN B. Wns'r, MILTON J. Spaans. 

